Have you watched all 8 episodes of Season 3 yet? If you're a huge Stranger Things fan, chances are the answer is "yes!"
But did you know there's a Stranger Things (Dig Dug-style) retro arcade game (by the name of Monster Flash) where you play as your favorite (8-bit) Stranger Things character? And it's hidden on Polaroid's website? And you need a secret code to unlock it?
Here's how you get to it.
First off, click here. It will bring you to a very 80s looking Polaroid Originals website (yes, they're trying to sell you their retro-looking OneStep 2 camera). From there, you need to enter the Konami-type Code on a computer keyboard: ↑ ↑ ↓ ↓ ← → ← → B A Then you're in!
Be safe in the upside down world, friends!
Source: Bloody Disgusting